#ifndef _LINUX_PROFILE_H
#define _LINUX_PROFILE_H
-#ifdef __KERNEL__
-
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/cpumask.h>
+#include <linux/cache.h>
+
#include <asm/errno.h>
#define CPU_PROFILING 1
#define SCHED_PROFILING 2
+#define SLEEP_PROFILING 3
+#define KVM_PROFILING 4
struct proc_dir_entry;
struct pt_regs;
struct notifier_block;
-/* init basic kernel profiler */
-void __init profile_init(void);
-void profile_tick(int);
-void profile_hit(int, void *);
-#ifdef CONFIG_PROC_FS
-void create_prof_cpu_mask(struct proc_dir_entry *);
+#if defined(CONFIG_PROFILING) && defined(CONFIG_PROC_FS)
+void create_prof_cpu_mask(struct proc_dir_entry *de);
#else
-#define create_prof_cpu_mask(x) do { (void)(x); } while (0)
+static inline void create_prof_cpu_mask(struct proc_dir_entry *de)
+{
+}
#endif
enum profile_type {
#ifdef CONFIG_PROFILING
+extern int prof_on __read_mostly;
+
+/* init basic kernel profiler */
+void __init profile_init(void);
+void profile_tick(int type);
+
+/*
+ * Add multiple profiler hits to a given address:
+ */
+void profile_hits(int type, void *ip, unsigned int nr_hits);
+
+/*
+ * Single profiler hit:
+ */
+static inline void profile_hit(int type, void *ip)
+{
+ /*
+ * Speedup for the common (no profiling enabled) case:
+ */
+ if (unlikely(prof_on == type))
+ profile_hits(type, ip, 1);
+}
+
struct task_struct;
struct mm_struct;
int register_timer_hook(int (*hook)(struct pt_regs *));
void unregister_timer_hook(int (*hook)(struct pt_regs *));
-/* Timer based profiling hook */
-extern int (*timer_hook)(struct pt_regs *);
-
struct pt_regs;
#else
+#define prof_on 0
+
+static inline void profile_init(void)
+{
+ return;
+}
+
+static inline void profile_tick(int type)
+{
+ return;
+}
+
+static inline void profile_hits(int type, void *ip, unsigned int nr_hits)
+{
+ return;
+}
+
+static inline void profile_hit(int type, void *ip)
+{
+ return;
+}
+
static inline int task_handoff_register(struct notifier_block * n)
{
return -ENOSYS;
#endif /* CONFIG_PROFILING */
-#endif /* __KERNEL__ */
-
#endif /* _LINUX_PROFILE_H */